Table 3 (Cont'd) 



PORTLAND LIGHTSHIP 1*3°31.6'K. 70°05.5'W. Depth of water - 150 feet 



September 1958 



150' 



Mean 56. 1* 54.9 52.6 50.8 49.6 3I.88 



32.47 



32.30 



32.15 



15 



